S60 TRACS/ABS: - ABS and Brakes warning light on

Frank6789 · Jul 14th, 2017, 15:40

Hi All,
I am new to this forum, need your help. TIA.
I have 2004 S60 2.5 AWD. Recently I haven't drive my car for about 2 weeks, when I started my car last Friday it seems like the rear brakes stuck due to the rust, so I put heavier accelerator and the car moved but I saw the rear wheels were stucked! I did back and forth a couple times the car finally moved normally. However, the next morning the abs and brakes warning light on, and Brake failure message came on.
I used my car during the weekend, sometimes the warning light off and everything is working perfectly, sometime warning light on and error message come back as well. The weird thing is that the sterling also became very tight when the ABS and brakes warning light on. the odometer is also stopped!
I think it may be a connector that abs or brakes in somewhere was loose or maybe something else... couldn't find a similar posting...
Please help.
Thanks,
Frank

cheshired5 · Jul 14th, 2017, 16:04

To begin with recharge your battery.
2 weeks is a long time for the battery to be on standby especially if it was quite low anyway and low system voltage can cause strange electrical behaviour and warnings.

Frank6789 · Jul 14th, 2017, 18:48

Thanks, I will check the battery.

ShadeTek · Jul 15th, 2017, 20:57

I would take the discs off and check the handbrake shoes for delamination. Also check the condition of the pads and ABS sensors for dirt.

oragex · Jul 16th, 2017, 01:45

Rear parking shoes are known to delaminate worth a check.

The ABS module at the bottom of the ABS valve unit is known to fail sometimes.
https://repairpal.com/abs-control-module-may-fail-265

Another area to check would be a fuse on the CEM - also known to go bad but it's the first time I read about locking the rear wheels, so perhaps less probable in your situation.

MarvinMitt · Jul 16th, 2017, 15:46

When checking handbrake shoes, also make sure the cables move with ease.
When a cable seizes up the springs on shoes are not strong enought to push it back.
However in that case you migt have difficulty to remove and reinstall the drums/rotors.

Frank6789 · Jul 16th, 2017, 16:15

Thanks all for the help. I was just back from the battery, starter and alternator (charging system)test, they are all normal.

So I will check the brakes based on your suggestion.

thank you guys SO MUCH!

Frank

Frank6789 · Jul 16th, 2017, 17:57

Hi,
What is the CEM? if the fuse is bad will cause those issues?
Thanks,
Frank

Quote:

Originally Posted by oragex

Rear parking shoes are known to delaminate worth a check.

The ABS module at the bottom of the ABS valve unit is known to fail sometimes.
https://repairpal.com/abs-control-module-may-fail-265

Another area to check would be a fuse on the CEM - also known to go bad but it's the first time I read about locking the rear wheels, so perhaps less probable in your situation.

Frank6789 · Jul 22nd, 2017, 19:02

I checked the handbrake shoes, pads and ABS sensors, they are all looks good...
Yesterday, when i drove it, the warning light was off about 10 miles, and the on again.
When the warning light on, the odometer is stop working...

Any thought? Thanks again!

Simon Jones · Jul 22nd, 2017, 22:34

The ABS sensors on all 4 wheels are also used for the speedo and odometer. Get the fault codes read and it should identify the problem.

Jul 14th, 2017, 15:40	#1
Frank6789 New Member Last Online: Nov 13th, 2017 11:34 Join Date: Jul 2017 Location: Toronto	ABS and Brakes warning light on Hi All, I am new to this forum, need your help. TIA. I have 2004 S60 2.5 AWD. Recently I haven't drive my car for about 2 weeks, when I started my car last Friday it seems like the rear brakes stuck due to the rust, so I put heavier accelerator and the car moved but I saw the rear wheels were stucked! I did back and forth a couple times the car finally moved normally. However, the next morning the abs and brakes warning light on, and Brake failure message came on. I used my car during the weekend, sometimes the warning light off and everything is working perfectly, sometime warning light on and error message come back as well. The weird thing is that the sterling also became very tight when the ABS and brakes warning light on. the odometer is also stopped! I think it may be a connector that abs or brakes in somewhere was loose or maybe something else... couldn't find a similar posting... Please help. Thanks, Frank

Jul 14th, 2017, 16:04	#2
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	To begin with recharge your battery. 2 weeks is a long time for the battery to be on standby especially if it was quite low anyway and low system voltage can cause strange electrical behaviour and warnings. __________________ 2002 S60 SE D5 Manual 209000 miles

Jul 15th, 2017, 20:57	#4
ShadeTek Premier Member Last Online: Apr 20th, 2024 19:38 Join Date: Dec 2002 Location: Renfrewshire View Photos By: ShadeTek	I would take the discs off and check the handbrake shoes for delamination. Also check the condition of the pads and ABS sensors for dirt. __________________ Tek-Emo Villis Emo Bis V70 SE NAV 1.6 D2 2015MY POWERSHIFT, D4162T, 93000miles, RED. /VOL FCR/PEPER OBD2/Acron 9135 OBD2/L.E.D Flasher/VDASH/ANCEL BA301/Topdon Top Scan

Jul 16th, 2017, 01:45	#5
oragex Premier Member Last Online: Jul 26th, 2021 21:24 Join Date: Jun 2013 Location: Coldnada	Rear parking shoes are known to delaminate worth a check. The ABS module at the bottom of the ABS valve unit is known to fail sometimes. https://repairpal.com/abs-control-module-may-fail-265 Another area to check would be a fuse on the CEM - also known to go bad but it's the first time I read about locking the rear wheels, so perhaps less probable in your situation. __________________ Several Volvo Repair Videos https://www.youtube.com/playlist?lis...ECTts0FSVSOT_c

Jul 16th, 2017, 15:46	#6
MarvinMitt Senior Member Last Online: Nov 1st, 2021 21:18 Join Date: Sep 2016 Location: Tartu	When checking handbrake shoes, also make sure the cables move with ease. When a cable seizes up the springs on shoes are not strong enought to push it back. However in that case you migt have difficulty to remove and reinstall the drums/rotors. __________________ 2002 V70 D5

Jul 14th, 2017, 18:48	#3
Frank6789 New Member Last Online: Nov 13th, 2017 11:34 Join Date: Jul 2017 Location: Toronto	Thanks, I will check the battery.

Jul 16th, 2017, 16:15	#7
Frank6789 New Member Last Online: Nov 13th, 2017 11:34 Join Date: Jul 2017 Location: Toronto	Thanks all for the help. I was just back from the battery, starter and alternator (charging system)test, they are all normal. So I will check the brakes based on your suggestion. thank you guys SO MUCH! Frank

Jul 22nd, 2017, 19:02	#9
Frank6789 New Member Last Online: Nov 13th, 2017 11:34 Join Date: Jul 2017 Location: Toronto	I checked the handbrake shoes, pads and ABS sensors, they are all looks good... Yesterday, when i drove it, the warning light was off about 10 miles, and the on again. When the warning light on, the odometer is stop working... Any thought? Thanks again!

Jul 22nd, 2017, 22:34	#10
Simon Jones Premier Member Last Online: Jan 15th, 2022 11:23 Join Date: Feb 2009 Location: Salisbury (ish)	The ABS sensors on all 4 wheels are also used for the speedo and odometer. Get the fault codes read and it should identify the problem.

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